Display device

This application claims priority to and benefits of Korean patent application No. 10-2022-0036882 under 35 U.S.C. § 119(a), filed on Mar. 24, 2022, in the Korean Intellectual Property Office (KIPO), the entire contents of which are incorporated herein by reference.

The disclosure generally relates to a display device.

As interest in information displays and demand for portable information media increase, research and commercialization has focused on display devices.

Embodiments provide a display device in which a load of a signal line is decreased.

In accordance with an aspect of the disclosure, there is provided a display device including data lines arranged in a first direction, the data lines extending in a second direction; and pixels including sub-pixels arranged in the first direction, the sub-pixels being electrically connected to the data lines, wherein a distance between closest even data lines of the data lines is greater than a distance between adjacent sub-pixels of the sub-pixels. Each pixel includes first sub-pixels emitting light of a first color and second sub-pixels emitting light of a second color. Two first sub-pixels of two pixels adjacent to each other in the first direction are electrically connected to one even data line among the even data lines.

Two second sub-pixels adjacent to each other in the first direction among the second sub-pixels may be electrically connected to another data line among the data lines.

The data lines may be spaced apart from each other with two of the sub-pixels being disposed between the data lines.

The sub-pixels may further include third sub-pixels emitting light of a third color. The one data line electrically connected to the two first sub-pixels may be located between a second sub-pixel among the second sub-pixels and a third sub-pixel among the third sub-pixels which are adjacent to each other.

Two third sub-pixels adjacent to each other among the third sub-pixels may be electrically connected to another data line among the data lines. The another data line may be located between a first sub-pixel among the first sub-pixels and a second sub-pixel among the second sub-pixels which are adjacent to each other.

The display device may further include sensing lines arranged in the first direction, the sensing lines extending in the second direction. Two sub-pixels adjacent to each other among the sub-pixels may be electrically connected to one sensing line among the sensing lines.

A distance between the sensing lines may be substantially equal to the distance between the data lines.

The data lines and the sensing lines may be alternately arranged in the first direction with one of the sub-pixels being disposed between the data lines and the sensing lines.

The two first sub-pixels may be electrically connected to different sensing lines among the sensing lines.

Each of the sensing lines may be electrically connected to two sub-pixels most adjacent to each of the sensing lines among the sub-pixels. The two sub-pixels may emit lights of different colors.

Each of the sub-pixels may include a pixel circuit including at least one transistor; and at least one light emitting element electrically connected to the pixel circuit. The two first sub-pixels may have circuit structures reversed to each other in the second direction in a plan view.

The at least one light emitting element may include inorganic light emitting diodes electrically connected in parallel to each other.

The at least one light emitting element may include an organic light emitting diode.

Each of the sub-pixels may include at least one light emitting element disposed on a substrate; a wavelength conversion pattern disposed above the at least one light emitting element, the wavelength conversion pattern emitting light by converting a wavelength band of light incident from the at least one light emitting element; and a color filter disposed above the wavelength conversion pattern.

In accordance with another aspect of the disclosure, there is provided a display device including a first data line, a second data line, and a third data line arranged in a first direction and extending in a second direction; a first scan line and a second scan line extending in the first direction; and a first pixel and a second pixel electrically connected to the first and second scan lines and adjacent to each other in one pixel row. Each of the first pixel and the second pixel includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, which are sequentially arranged in the first direction. The first sub-pixel of the first pixel and the first sub-pixel of the second pixel share the first data line, and the third sub-pixel of the first pixel and the third sub-pixel of the second pixel share the second data line.

The second sub-pixel of the second pixel may be electrically connected to the third data line, and the second sub-pixel of the first pixel may be electrically connected to a reference data line different from the third data line.

The first data line may be located between the second sub-pixel and the third sub-pixel of the first pixel, and the second data line may be located between the first sub-pixel and the second sub-pixel of the second pixel.

The display device may further include sensing lines arranged in the first direction, the sensing lines extending in the second direction. Each of the sensing lines may be electrically connected to two sub-pixels most adjacent thereto among the first, second, and third sub-pixels.

The sensing lines may include a first sensing line, a second sensing line, and a third sensing line.

The first sub-pixel and the second sub-pixel of the first pixel may share the first sensing line. The third sub-pixel of the first pixel and the first sub-pixel of the second pixel may share the second sensing line.

Each of the first, second, and third sub-pixels may include a pixel circuit including at least one transistor; and at least one light emitting element electrically connected to the pixel circuit. The at least one light emitting element may include inorganic light emitting diodes electrically connected in parallel to each other.

The disclosure may apply various changes and different shape, therefore only illustrate in detail with particular examples. However, the examples do not limit to certain shapes but apply to all the change and equivalent material and replacement. The drawings included are illustrated in a fashion where the figures may be expanded for the better understanding.

It will be understood that, although the terms “first,” “second,” and the like may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. Thus, a “first” element discussed below could also be termed a “second” element without departing from the teachings of the disclosure. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It will be further understood that the terms “includes” and/or “including,” when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence and/or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Further, an expression that an element such as a layer, region, substrate or plate is placed “on” or “above” another element indicates not only a case where the element is placed “directly on” or “just above” the other element but also a case where a further element is interposed between the element and the other element. On the contrary, an expression that an element such as a layer, region, substrate or plate is placed “beneath” or “below” another element indicates not only a case where the element is placed “directly beneath” or “just below” the other element but also a case where a further element is interposed between the element and the other element.

The effects and characteristics of the disclosure and a method of achieving the effects and characteristics will be clearly described by referring to the embodiments described below in detail together with the accompanying drawings. However, the disclosure is not limited to the embodiments disclosed herein but may be implemented in various forms. In the entire specification, when an element is referred to as being “connected” or “coupled” to another element, it can be directly connected or coupled to the another element or be indirectly connected or coupled to the another element with one or more intervening elements interposed therebetween. In an embodiment of the disclosure, the term “connection” between two components may include both electrical connection and physical connection. It will be understood that the terms “contact,” “connected to,” and “coupled to” may include a physical and/or electrical contact, connection, or coupling.

Spatially relative terms, such as “beneath,” “below,” “under,” “lower,” “on,” “above,” “upper,” “over,” “higher,” “side” (e.g., as in “sidewall”), and the like, may be used herein for descriptive purposes, and, thereby, to describe one elements relationship to another element(s) as illustrated in the drawings. Spatially relative terms are intended to encompass different orientations of an apparatus in use, operation, and/or manufacture in addition to the orientation depicted in the drawings. For example, if the apparatus in the drawings is turned over, elements described as “below” or “beneath” other elements or features would then be oriented “above” the other elements or features. Thus, the term “below” can encompass both an orientation of above and below. Furthermore, the apparatus may be otherwise oriented (e.g., rotated 90 degrees or at other orientations), and, as such, the spatially relative descriptors used herein should be interpreted accordingly.

When an element, such as a layer, is referred to as being “on,” “connected to,” or “coupled to” another element or layer, it may be directly on, connected to, or coupled to the other element or layer or intervening elements or layers may be present. When, however, an element or layer is referred to as being “directly on,” “directly connected to,” or “directly coupled to” another element or layer, there are no intervening elements or layers present. To this end, the term “connected” may refer to physical, electrical, and/or fluid connection, with or without intervening elements.

The terms “about” or “approximately” as used herein is inclusive of the stated value and means within an acceptable range of deviation for the particular value as determined by one of ordinary skill in the art, considering the measurement in question and the error associated with measurement of the particular quantity (i.e., the limitations of the measurement system). For example, “about” may mean within one or more standard deviations, or within ±30%, 20%, 10%, 5% of the stated value.

The term “and/or” includes all combinations of one or more of which associated configurations may define. For example, “A and/or B” may be understood to mean “A, B, or A and B.”

The phrase “at least one of” is intended to include the meaning of “at least one selected from the group of” for the purpose of its meaning and interpretation. For example, “at least one of A and B” may be understood to mean “A, B, or A and B.”

Unless otherwise defined or implied herein, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the disclosure, and should not be interpreted in an ideal or excessively formal sense unless clearly so defined herein.

Hereinafter, a display device in accordance with an embodiment of the disclosure will be described with reference to the accompanying drawings.

is a schematic plan view illustrating a display device in accordance with embodiments of the disclosure.illustrates a display panel PNL provided in the display device.

illustrates a structure of the display panel PNL based on a display area DA. However, in some embodiments, at least one driving circuit (e.g., at least one of a scan driver and a data driver), lines, and/or pads, which are not shown in the drawing, may be further disposed in the display panel PNL.

Referring to, the display panel PNL may include a substrate SUB and pixels PXL disposed on the substrate SUB.

The substrate SUB is used to constitute a base member of the display panel PNL, and may be a rigid or flexible substrate or film. In an example, the substrate SUB may be formed as (or configured as) a rigid substrate made of glass or tempered glass, a flexible substrate (or thin film) made of plastic or metal, or at least one insulating layer. The material and/or property of the substrate SUB is not particularly limited.

In an embodiment, the substrate SUB may be substantially transparent. The term “substantially transparent” may mean that light can be transmitted with a transmittance (e.g., a predetermined or selectable transmittance) or more. In another embodiment, the substrate SUB may be translucent or opaque. The substrate SUB may include a reflective material in some embodiments.

The display panel PNL and the substrate SUB for forming the same may include the display area DA for displaying an image and a non-display area NDA except the display area DA.

The pixels PXL may be arranged in the display area DA. Various lines, pads, and/or a built-in circuit, which are connected to the pixels PXL of the display area DA, may be disposed in the non-display are NDA.

The pixel PXL may include sub-pixels SPXto SPX. For example, the pixel PXL may include a first sub-pixel SPX, a second sub-pixel SPX, and a third sub-pixel SPX.

Each of the sub-pixels SPXto SPXmay emit light of a color (e.g., a predetermined or selectable color). In some embodiments, the sub-pixels SPXto SPXmay emit rays of light (or lights) of different colors. In an example, the first sub-pixel SPXmay emit light of a first color, the second sub-pixel SPXmay emit light of a second color, and the third sub-pixel SPXmay emit light of a third color. For example, the first sub-pixel SPXmay be a red pixel emitting light of red, the second sub-pixel SPXmay be a green pixel emitting light of green, and the third sub-pixel SPXmay be a blue pixel emitting light of blue. However, the disclosure is not limited thereto.

In an embodiment, the first sub-pixel SPX, the second sub-pixel SPX, and the third sub-pixel SPXmay have, as light sources, a light emitting element of the first color, a light emitting element of the second color, and a light emitting element of the third color, to emit rays of light of the first color, the second color, and the third color, respectively. In another embodiment, the first sub-pixel SPX, the second sub-pixel SPX, and the third sub-pixel SPXmay have light emitting elements emitting light of a same color and include color conversion layers and/or color filters of different colors, which are disposed above the respective light emitting elements, to respectively emit rays of light of the first color, the second color, and the third color. However, the colors, types, and/or numbers of sub-pixels SPXto SPXforming each pixel PXL are not particularly limited. For example, the color of light emitted from each pixel PXL may be variously changed.

The sub-pixels SPXto SPXmay be regularly arranged according to a stripe structure, a PENTILE′ structure, or the like. For example, the first, second, and third sub-pixels SPX, SPX, and SPXmay be sequentially and repeatedly disposed in a first direction DR. The first, second, and third sub-pixels SPX, SPX, and SPXmay be repeatedly disposed in a second direction DR. At least one first sub-pixel SPX, at least one second sub-pixel SPX, and at least one third sub-pixel SPXmay constitute a pixel PXL capable of emitting rays of light of various colors. However, the arrangement structure of the sub-pixels SPXto SPXis not limited thereto, and the sub-pixels SPXto SPXmay be arranged in the display area DA in various structures and/or various manners.

In an embodiment, each of the sub-pixels SPXto SPXmay be formed as an active pixel. For example, each of the sub-pixels SPXto SPXmay include at least one light source (e.g., at least one light emitting element) driven by a control signal (e.g., a scan signal and a data signal) and/or a power source (e.g., a first power source and a second power source). However, the kind, structure, and/or driving method of the sub-pixels SPXto SPX, which can be applied to the display device, are not particularly limited.

are schematic diagrams of equivalent circuits illustrating an embodiment of the sub-pixel included in the display device shown in.

In some embodiments, a sub-pixel SPX shown inmay be at least one of the first sub-pixel SPX, the second sub-pixel SPX, and the third sub-pixel SPX, which are provided in the display panel PNL shown in. The first sub-pixel SPX, the second sub-pixel SPX, and the third sub-pixel SPXmay have structures substantially identical or similar to one another.